Handbrake Problem

I just ripped a movie (Knocked Up) to my desktop from my PowerBook G4. The process went along nicely and the file came out being the desired size as well (just under 700MB). However, no matter what I play the movie in, i get a 5 second long clip of white nothingness. I would really not like to repeat the 4 hour process over again, especially if this happens again...

Does anyone know what I'm doing wrong?

P.S. it's in .avi format